Replacement of the front power window regulator assembly on a 2024 Model 3 Long Range. This requires removing the front door trim panel, peeling the vapor barrier, lowering the glass, and unbolting the regulator/motor assembly through the door access holes.

Warnings

Tools required

Parts

• Front door window regulator assembly (with motor) × 1 — Manufacturer-specified Model 3 front door regulator — left or right as applicable
• Replacement butyl/vapor barrier sealant (if barrier is damaged on removal) × 1 — Generic automotive butyl rope sealant
• Replacement plastic trim clips (if any break during removal) × 1 — OEM Model 3 door panel retainer clips

Preparation

1. Park on level ground, place in P, and engage the parking brake.
2. Exit ALL doors with the key fob away from the vehicle. Wait at least 2 minutes for HV systems to fully de-energize, even on this non-HV job.
3. Disconnect the 12V low-voltage battery. On 2024 Model 3, the 12V (lithium) battery is typically located under the rear floor or behind the right rear seat back panel — refer to architecture notes and confirm location before disconnect. Loosen the negative terminal first.
4. DO NOT touch, cut, or pierce ANY orange cable — these are high-voltage and lethal.
5. If at any point you encounter an orange cable, an HV component, or are unsure if a system is de-energized: STOP and consult a Tesla-certified technician.
6. Lower the affected window approximately halfway (BEFORE disconnecting the 12V) to align the regulator-to-glass clamp bolts with the access holes in the inner door panel — note this position; if the regulator is already failed and glass is stuck, plan to support the glass manually during clamp release.
7. Lay a clean fender cover or blanket over the door sill and floor to catch dropped fasteners.
8. Have the replacement regulator/motor assembly verified for correct side (driver vs passenger) before disassembly.

Procedure

1. 1

   Remove the door trim panel
   Using a plastic trim tool, gently pry the small triangular tweeter/sail trim at the upper-front corner of the door to release its clips. Then work around the perimeter of the door card releasing the push-pin clips — start at the lower rear corner and work forward and up. Lift the panel upward off the window-belt hook. Tilt the panel out and disconnect the wiring harnesses (window switch pack, speaker, courtesy light) by depressing the locking tabs. Set the panel aside on a padded surface.
   ⚠Pull straight out perpendicular to the door — angled pulling will snap the plastic clip towers.
2. 2

   Remove the vapor barrier
   Carefully peel back the plastic vapor barrier from the inner door, working slowly to keep the butyl sealant intact on the barrier (it can be reused if undamaged). Fold the barrier upward and tape it out of the way. Inspect for any moisture or corrosion inside the door cavity.
3. 3

   Secure the window glass
   With the glass in the position that exposes the regulator-to-glass clamp bolts through the access holes, apply two or three strips of painter's tape from the top edge of the glass over the door frame to hold it firmly in the raised position. Confirm the glass cannot drop before proceeding.
   ⚠️Frameless glass will fall into the door cavity and likely shatter if not taped. Do not skip this step.
4. 4

   Disconnect the regulator motor
   Reach through the largest access hole and locate the window motor electrical connector at the rear of the regulator carrier plate. Depress the locking tab and unplug it. Free the harness from any retaining clips on the regulator body so it does not snag during removal.
5. 5

   Release the glass from the regulator
   Through the access holes, loosen the two glass-to-regulator clamp fasteners. Once loose, slide the regulator clamps down/away from the glass — the taped glass will remain in place. Do NOT pull the glass out yet; leave it taped in the up position so you have working room behind the regulator.
6. 6

   Unbolt the regulator assembly
   Remove the perimeter fasteners securing the regulator carrier plate to the inner door structure (typically along the top belt line and at the lower mounting points). Support the regulator with one hand as the last fasteners are removed so it does not drop into the door cavity. Torque values for these fasteners on reinstallation: refer to OEM specification — refer to Tesla Service Manual for door regulator carrier fasteners.
7. 7

   Maneuver the regulator out of the door
   Tilt the regulator assembly and feed it out through the largest access opening in the inner door. The motor is the bulkiest part — rotate as needed. Take care not to scrape painted edges or damage the inner sound deadening.
8. 8

   Transfer/compare and install new regulator
   Compare the new regulator side-by-side with the old unit to confirm correct orientation, motor side, and connector type. Feed the new assembly into the door cavity through the same access hole, orient it against the mounting points, and install the carrier fasteners hand-tight first to allow alignment. Then torque all carrier and bracket fasteners to OEM specification — refer to Tesla Service Manual; where the manufacturer specifies generic bracket fasteners in this range, torque to bracket bolt spec.
   Torque spec

   Bracket Bolts20 Nm (15 lb-ft)
9. 9

   Reattach glass to regulator
   Lower the glass (manually, by releasing tape and sliding it down by hand if 12V is still disconnected) until the glass mounting points align with the regulator clamps through the access holes. Seat the glass fully into the clamps and tighten the glass clamp fasteners to OEM specification — refer to Tesla Service Manual. Re-tape the glass after seating, in case adjustment is needed.
   ⚠Do not overtighten glass clamp bolts — overtorque can crack the laminated glass at the clamp.
10. 10

    Reconnect motor and verify mechanical movement
    Plug the regulator motor connector back in until it clicks. Reseat any harness retaining clips. Before reinstalling the vapor barrier, you will perform a function test in step 12.

Reassembly

1. Reconnect the 12V battery negative terminal and torque to Battery Terminal Bolts spec (6.0 Nm / 4.0 lb-ft). Do not overtighten.
2. With the door open, momentarily test window up/down using the door switch to confirm smooth travel and proper glass alignment in the seal channel before sealing the door up. If the glass binds or sits proud of the seal, loosen clamps and re-align.
3. Remove painter's tape from the glass.
4. Re-seat the vapor barrier to the inner door, pressing firmly along the butyl bead. Apply fresh butyl sealant to any sections where the original seal was damaged. A complete seal is critical to prevent water intrusion and wind noise.
5. Reconnect all door card harnesses (switch pack, speaker, courtesy lamp). Hook the door card onto the belt line first, then press the perimeter clips home one at a time. Reinstall the upper sail/tweeter trim.
6. Verify no rattles by lightly tapping the door card edges.

Verification

• Perform window auto-up/auto-down re-initialization: with the door closed and 12V reconnected, hold the switch DOWN until the window is fully open, then hold for 2 additional seconds. Then pull the switch UP and hold until the window is fully closed, then hold for 2 additional seconds. This re-teaches the upper and lower stops and re-enables anti-pinch.
• Test one-touch up and one-touch down operation from both the door switch and from the Tesla mobile app (Controls > Windows). Both should function.
• Test the anti-pinch function by placing a soft obstruction (rolled towel) in the window path during auto-up — the window must reverse direction.
• Cycle the window 3-5 full travels and listen for grinding, clicking, or motor strain — any of these indicate the regulator is not seated squarely or the glass is misaligned in the channel.
• Spray a light mist of water along the top door seal and inspect the inside of the door card area for leaks (only after butyl barrier is fully reseated).
• Check the Tesla touchscreen for any new alerts related to body controller or window module — clear/acknowledge any 'window not calibrated' messages by repeating the re-initialization above.
• Note: This job is not part of any scheduled Tesla maintenance interval, but while the door is open it is a good time to verify the door speaker, tweeter, and door handle mechanism are functioning correctly.

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